Sigma-delta-modulator

Details Sigma-delta-modulator Sigma-delta-modulator

2005-12-27

2005-12-27

Young, Brian (Department: 2819)

Coded data generation or conversion

Converter compensation

Reexamination Certificate

active

06980139

ABSTRACT:
A quantizer for a sigma delta modulator comprising at least one preliminary stage V1, V2), the quantizer quantizing an input signal (EQ) present at it in accordance with at least one threshold signal (yth,i) and outputting it as a result value (yQ) at a digital result output (OUT), wherein the quantizer has a number of comparators (5j) corresponding to the number of threshold signals (yth,j), which compare the input signal (EQ) with the respective threshold signal (yth,j), the threshold signal being reduced or increased by a correction voltage (ydac3) or a correction current, the correction voltage or correction current being generated in accordance with the result value (yQ) output at the result output (OUT).

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